PARIS — Marin Cilic beat Dutch qualifier Igor Sijsling 5-7, 6-1, 6-4 on Monday in the first round of the Paris Masters, his first match since his return from a four-month ban for a positive doping test.

The Croatian served 21 aces and hit 42 winners to only 17 for Sijsling, who double-faulted to give Cilic a 4-3 lead in the deciding set.